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FFmpeg/libavformat/daudenc.c
Andreas Rheinhardt 59c9dc82f4 avformat/avformat: Move AVOutputFormat internals out of public header
This commit does for AVOutputFormat what commit
20f9727018 did for AVCodec:
It adds a new type FFOutputFormat, moves all the internals
of AVOutputFormat to it and adds a now reduced AVOutputFormat
as first member.

This does not affect/improve extensibility of both public
or private fields for muxers (it is still a mess due to lavd).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2023-02-09 15:24:15 +01:00

56 lines
1.8 KiB
C

/*
* D-Cinema audio muxer
* Copyright (c) 2005 Reimar Döffinger
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
#include "mux.h"
static int daud_init(struct AVFormatContext *s)
{
AVCodecParameters *par = s->streams[0]->codecpar;
if (par->ch_layout.nb_channels != 6 || par->sample_rate != 96000)
return AVERROR(EINVAL);
return 0;
}
static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
{
if (pkt->size > 65535) {
av_log(s, AV_LOG_ERROR,
"Packet size too large for s302m. (%d > 65535)\n", pkt->size);
return AVERROR_INVALIDDATA;
}
avio_wb16(s->pb, pkt->size);
avio_wb16(s->pb, 0x8010); // unknown
avio_write(s->pb, pkt->data, pkt->size);
return 0;
}
const FFOutputFormat ff_daud_muxer = {
.p.name = "daud",
.p.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
.p.extensions = "302",
.p.audio_codec = AV_CODEC_ID_PCM_S24DAUD,
.p.video_codec = AV_CODEC_ID_NONE,
.p.flags = AVFMT_NOTIMESTAMPS,
.init = daud_init,
.write_packet = daud_write_packet,
};